单项选择题
Which of the following resources can be referenced in the LOCK statement?（）
A.Row B.Table C.Column D.Table space
单项选择题 Which of the following tools for DB2 V9 allows a user to create and debug a SQL stored procedure?（）
单项选择题 In which situation is shredding XML data recommended?（）
单项选择题 Which of the following is a typical data warehouse query?（）
